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syndetector is a software which can detect and drop packet when a synflood attack is detected ! Based on a simple detection system (by the use of iptables and libipq) and on a simple use It is realy easy to setup this software.
etherdam is an IPTables firewall configuration engine; it implements a primitive (and hopefully simple) scripting language as an alternative to direct use of iptables.
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This project wants to provide useful tools for routing simple small private networks using a dial-up or broadband link. These tools consist of firewall and traffic shaping tools currently. Any feedback is welcome.
Simple-to-use, dynamic, rule-based firewall addition. Uses QUEUE/userspace to dynamically approve or drop packets based on custom rules. With frequency caching, friend/foe indication, loose IP matching, and customizable logging.
jRouter is a Web-based Linux router management system. It's designed to be a simple all-in-one router setup and management utility. Allows configuration of network interfaces, dhcpd, iptables, port forwarding, IP/MAC address filters.
Easiest way to turn a Linux System into a Nat router with a web interface for firewall configuration and monitoring.
For beginers, offers a simple and secure solution.
For advanced users, a customizable and friendly way of remote administration.
A simple port-relaying program written in Java; sits on specified ports for either TCP or UDP, re-sends packets to the given IP. Doesn't forward packets, actually receives and re-sends them. Could be handy to learn Java Sockets/networking. Public Domain.
Protect your Server/Network against spammers.
fw_spam queries a DNS-based Spam Database to detect spam listed ip-addresses.
It is a userspace daemon, wich gets the packets from the iptables QUEUE target.
You can configure the dns server, the firewall
links2world Firewall is a simple tool writen in C, that helps you generate iptables rules for Linux 2.4.x and newer kernels. Very easy to configure, it is designed to run on hosts with one or more network interfaces.
The Nemesis Project is designed to be a command line based, portable human
IP stack for UNIX-like and Windows systems. The suite is broken down by
protocol, and should allow for useful scripting of injected packets from
simple shell scripts.
WifiCoffee is a linux based solution intended to provide small to medium size Coffee shops or Cafes a quick and simple way of offering effective and secure Wifi Internet access to its customers.
A very simple Linux firewall scripts designed for home users/small office users. Requires Linux kernel 2.4.x, ipcalc and iptables to run. These scripts have been tested on Trustix 1.2, 1.5 and 2.0 (Beta), Redhat 7.2, and 7.3 only.
Simple Firewall is a easy tool for administration users and access control.
This tool is made for Linux.
Using iptables for packet filtering
Write in perl
Save rules with xml.
That can be run in bash shell and web via webmin.
This version of firewa
This very simple perl script parses you iptables log files and produces a report in text format with a summary based on the prefix of the log ( --log-prefix option of iptables ).
Prefix description is allowed.
Libconnect is a simple library wrapper written in
assembly language that intercepts the calls
applications make to establish TCP connections and
transparently proxies them as necessary.
Mini OpenBSD Router/Firewall/Gateway
with openssh, altqd, pfctl (firewall+nat), routed, snmpd, oidentd, simple shell menu config,multi user & wireless support. Fit on 8MB flashdisk & 24 MB ram.